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3 Sheets-Sheet 1. B. A. BROOKS.

(No Model.)

TYPE WRITER.

Patented Mar. 6.1883.

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7 (No Model.) 3Sheets--Sheet 2.

B. A. BROOKS.

TYPE WRITER. I No. 273,454. Patented Mar- 6, 1883.

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3 Sheets-Sheet 3.

(No Model.)

B. A. BROOKS.

' TYPE WRITER Patented Mar.6,1883.

UNITED STATES PATENT Grates,

BYRON A. BROOKS, OF NEW? YORK, N. Y.

TYPE-WRITER.

SPECIFICATION forming part of Letters Patent No. 273,454, dated March 6,1883.

Application filed April 7, 1882. (No model.)

lowing is a description in such full, clear, and exact terms as toenable any one skilled in the' art to which it appertains or with whichit is most nearly connected to make and use the same, reference beinghad to the annexed drawings, making part of this specification, and tothe figures and letters of reference marked thereon.

Figure l of said drawings is a longitudinal vertical section through thecenter of my improved type-writer. Fig. 2 is a top view of the same, andFig. 3 is a section on the line A B.

My invention consists of a series of typelevers set in an arc of acircle upon a horizontal plane, each lever carrying two or more typesupon its under side, and arranged to move forward to a commonprinting-point and'st-rike downward to print upon the paper by oneimpulse of the operating-lever, the series of typelevers being placedabove and parallel to the plane of the key-levers, and moving forward toprint upon the paper from above, leaving the printing always in sight.

Reference being bad to the drawings, the combination and operation ofthe parts con stituting the invention will be understood from thefollowing description The frame of the machine is shown in the drawingsby B. In this frame is arranged a series of key-levers, A. These leversare the prime movers ofthemachine, and through their instrnmentality allthe parts of the machine are put in action. To the rear end of each'ofthese key-levers th ereis'connected a bell-crank, A, the upper end 'ofwhich is connected to the type-lever O, a detached view of which appearsin Fig. 4. This type-lever is connected at e to the carriage D and at-fto the bellcrank through the connecting-rod E. The carriage D travels toand fro in a channel or course between two supporting-plates, g 3 heldin position by the standards or posts R, and the point a of thetype-lever rides onthe bottom of the channel while it is pressed forwardover the front end of the bottom plates 3 'land 2 are operated by thelevers 8 through There are three types, a b c, on the under side of eachof the type-levers, either one of which may be made to strike directlyupon the top of the platen or paper-roller E. To effect this there is ashoulder, 0, made on the top side of the carriage 1), and three stops, 12 3, provided in the top plate, y. Stops Nos. 1 and 2 are movable, andare moved up and down by the levers s s in corresponding slots cut inthe plate y. By these means, when the carriage D is moved back and stop1 shoved down, the type ais on the center of the cylindrical platen E inposition to print; and when stop 1 is raised up and stop 2 shoved down,the carriage D moves forward against it, bringing type b in position toprint; and when stop 2 is raised up, the carriageD moves forward againststop 3, bringing type C over the center of the platen in position toprint;.but to doits work this type-lever must have not only a.horizontalmotion, but also a vibrating motion, and the stops 1, 2, and 3 not onlygovern the extent of its horizontal v motion forward,but they assistalso in imparting to it a vibratory motion, for it will be seen thatwhen the shoulder on the carriage strikes the stops the forward motionof the type-lever will be arrested; but therod E being connected to itat f, above the point of its connection at 6, its forward end will beforced down against the spring 2 by the connecting-rod as soon as thepoint a passes oli' of the plate y. The impression of the type havingbeen made and the force of the key-lever A taken off, the spring araises'the type-lever up, and the weight of the rear end of thekey-lever and the springs 00 draw the carriage D back to its normalposition, as shown by dotted lines in Fig. 1, and in doing so it. causesthe type to ride over the inking-roller O, the ink being supplied from atrough, D, by means of a roller therein, and an intermediate roller, a,to spread the ink e-venly over the roller 0 It will be understood thatthe type in each lever may be of different character. Thus the type amay be a Roman letter, I) a capital, and c a figure, each of which maybe printed by merely moving the type-lever backward or forward, as thecase may require. The stops IOC the connecting-rods M, connected tolevers s on the shafts N, the three stops extending across the machineand serving for all the keys and type-levers, the types in all thelevers bearing the same relation to each stop. The paper-platen iscarried in a carriage-frame, P,

that rides upon rods P, set in supporting. posts P. means of pinion Hacting in a rack, G, bolted Its lateral motion is efiected by to thecarriage P, the pinion being operated by means of a dog, I, acting upona ratchetwheel, H, the dog being connected to the string piece T betweenthe levers L, operated by the key-levers A, acting against a cross-bar,11, common to them all, the lcverbeing drawn down by the retractileforce of the spring U. The position of the bar '0 upon the levers L andA will depend of course upon the amount of lateral motion to be impartedto the carriage P at each impulse of each key, the object being toregulate the space between the impression of each type, and to obtain.the amount of lateral motion in each impulse necessary to insure anequal space between each letter, whether theletter be broad or narrow.The bar 0 is notched or ribbed more or less, as shown by r, Fig. 3, thekey-levers acting either in the notches more or less deep or on theribs, according as the letter is wide or narrow, the amount of lateralmotion of the carriage P being thus varied at each impulse of the keys,according to the width of the several letters or figures used inprinting. Thepaper is placed upon the cylindrical platen E, between itand the roller F, and the spacing between the rows of letters isobtained by any of the well-known devices and connections used for thatpurpose.

Having thus described my improved typewriter, 1 claim and desire tosecure by Letters Patent; the following features of novelty:

1. In a type-writing machine, the combina-' tion of type-bars c,type-bar carriages D, key-levers A, and intervening connectinglevers,the type-bars having a reciprocating and vibratory motion and beingplaced above the platen to print on the upper side of the paper, and thecarriages having a stop or stops to govern accurately the reciprocatingmotion of the type-bars.

2. In a type-writing machine,the combination of type-bars O, key-bars A,intervening cranks, A, carriages D, and stops 1 2 3, the whole coactingsubstantially as described.

3. In a type-writing machine, the combination ofthe type-bars G, movablestops 1 2, and reciprocating carriages D, having stop projections o, theseveral parts coacting substantially as described, for the purposespecified.

4. In a type-writing machine, one or more movable stops, 1 2, connectedto and operated by the levers B B, and in combination with the type-barcarriage, the connection being made by rods M and levers S and S,substantially as described.

5. In a type-writing machine, the combination of reciprocating andvibrating type-bars, each carrying two or more type and having avariable reciprocating motion with and above a traveling platen, E, andan inking-roller, U, the several parts coacting substantially asdescribed, for the purpose specified.

BYRON A. BROOKS.

Witnesses:

J. EDGAR BULL, CHAS. C. BULL.

